Helpppp

I just had my mirena removed last month 5/9 and I have no idea what is going on. I know my cycles are probably off bc my body is trying to get back to being regular but I didn’t have any type of bleeding not even from removal until 6/4 and I bled for about 2 days it was pretty heavy for a day. I went without any bleeding and then had spotting on 6/7. Now I’m feeling sick to my stomach constantly and have been having cramps on and off all week. I had bad removal symptoms at first but those had gone away and I didn’t think they’d be back. Surely with the heavy bleeding I wouldn’t be pregnant right? Has anyone else had crazy cycles post mirena removal? I’m planning to take a test today.